Gone from the record, not merely closed – verified on 15 August 2026
MarathonBet had no sister sites in Britain. It has no British licence either, and unlike the other closed operators written up on this site its licence file has not simply been marked dead, it has been taken down. A search of the Gambling Commission records for marathon returns the words No results, and the account number this page has carried since it was written now returns a page headed No record found.
Recommended Sportsbook Offers
Advertisement · Contains affiliate links
Offers subject to operator terms. This page contains affiliate links.
Where a Marathon customer can look now
Nothing named under this heading is a sister site of MarathonBet, and after the paragraph above the reason should be plain: a sister needs a shared licence, and there is no licence left to share. These are other places this site is prepared to point a betting reader, and that is the whole of the connection.
Two of the names here are carded and one is not. JeffBet and Betarno both sit on ProgressPlay Limited, account 39335, and each one prints that number in its own footer, which makes the pair sisters of one another in precisely the sense this page has been using the word. Saying so is better than quietly leaving it out: the arrangement MarathonBet never had is the one these two are in, and anybody who valued dealing with a company that did a single thing should know they are now looking at the reverse.
They were picked for the two different sizes of answer they give. One puts a sportsbook, a casino and a bingo room behind a single login, which is the widest answer available to somebody whose old bookmaker sold football prices and nothing else. The other stays closer to a plain betting account and settles the joining question in a single line. Both print their own licensing where anybody can read it, so the account each belongs to can be checked rather than taken on trust.
No terms are printed here for Planet Sport Bet, the third name this site is willing to mention on this page. British bookmakers of this kind generally run a rotating mix of sports and casino promotions through the year, free bets and accumulator boosts on one side, free spins and prize wheels on the other, and which of them is live in any given week is a question for the day you look rather than for a guide written earlier. That is the whole reason this page prints figures only where a date can sit beside them.
There is a worked example of the point on the JeffBet front page itself. Below the three offers above it was still advertising a football cashback deal carrying the promotion code EPLC and a closing date of 21 March 2026, roughly five months before this page was checked. An offer can outlive its own deadline on the very page selling it, which is why the date beside a figure matters more than the size of the figure.
A licence file that is not there any more
Gambling companies that close do not usually disappear from public view, and two worked examples sit on this site already. TGP Europe Limited handed its permissions back rather than contest a penalty, and account 38898 still returns a full licence summary. AG Communications Limited has 76 web addresses that are all switched off, and account 39483 still returns one as well. Both were opened again on 15 August 2026 and both answered normally.
Marathon does not. The account number recorded on this page returns a page titled No record found, and the web server answers it with the code used for a page that has been removed on purpose rather than one that is merely missing. Searching the name instead of the number produces the same nothing.
For a reader the consequence is narrow and worth stating in full. There is no British file left to open, so there is now no way to look up which company was answerable, which permissions it held, which web addresses were filed against it, or whether anything was ever recorded against it. The answer to the sister question is none, and it is none permanently, because the arrangement that would have produced a sister has been withdrawn rather than paused.
What is recorded here from before the licence went
Some of what follows can no longer be confirmed from source, and it is set out with that said rather than smoothed over.
The company recorded on this page as the British licence holder is Marathon Alderney Limited. The closing dates recorded are 4 April 2022 for new sign-ups, and 14 April 2022 for the last deposits and bets taken from British customers. Those figures come from the earlier August 2026 work on this page and they keep that date, because the file that would confirm them is precisely the one that is no longer published.
The same earlier visit found the MarathonBet address serving a notice that told existing customers they could still sign in and withdraw a balance, and pointing customers outside Britain to the Gambling Control Commission in Alderney. Anybody still holding money from 2022 should treat that as information of its age rather than as a description of today, and should expect to start with the contact routes on the site itself.
Nothing on this page describes what that address serves at this moment. That is deliberate, and it follows the same standard as the missing offers above: a description is worth having only where a date can be attached to it.
If a Marathon branded site offers you a bet today
The Commission pages that carry licence files also carry a standing note about unlicensed operators. It says that anybody in Great Britain who has been offered gambling by somebody that does not appear to hold a licence can report it, because it may be illegal. That note was on every file page opened for this update on 15 August 2026.
Set beside the finding above, it is the practical part. There is no British licence behind this brand now. A site using the name and taking bets from Britain today would not be operating under the arrangement that was in place until April 2022, and the reporting route in that note is the one that exists for exactly that situation.
Why lists of MarathonBet sisters still circulate
Pages built to answer this question do still return lists, and they are generally assembled from overseas versions of the brand. Those never sat on the British licence while there was one, which was the point worth making then and is a sharper one now. A brand with no British licence has no British sisters, and there is no quiet arrangement under which it could have acquired any.
Applying the same check anybody else can apply is the only way to settle it. Put the brand name into the Commission records and see which account answers. Nothing answers for this one, and that is both the shortest form of the answer and the most complete.
More reading on bookmakers that closed or never grew
10Bet is the single-brand bookmaker that is still trading, and its licence file is the exact opposite of this one. BC.Game covers the TGP Europe account mentioned above, the one that was given back rather than taken away. QueenPlay covers AG Communications and its 76 closed addresses.